"I would have expected some additional follow up from either my phone giving me a message," he said.

Late Friday evening, a representative from Duke told ABC11 that it was only one of their sirens that malfunctioned. It was the one on Jenks Road near Walmart.

"Duke Energy's Harris Nuclear Plant is operating safely," said Brandon F. Thomas, a Duke Energy senior spokesman. "Duke Energy is actively working with Wake County and the State of N.C. Emergency Management to determine why it sounded."

ABC11 has learned that technicians will be out Saturday morning at 10 a.m. to figure out what went wrong.

Duke said they will conduct a brief test, so residents will hear a siren or a series of several at full volume.